| Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550) |
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| 06/24/2009 | EP1193725B1 Method for diagnosing abnormal condition of isolation transformer and device therefor |
| 06/24/2009 | CN201262890Y Combined sensor |
| 06/24/2009 | CN201262889Y Electronic current mutual inductor |
| 06/24/2009 | CN100505121C Current transformer with rogowski type winding |
| 06/24/2009 | CN100505120C Dry type mutual inductor with optical signal output |
| 06/23/2009 | US7550951 Two-step battery charger |
| 06/18/2009 | US20090153273 Energy transferring system and method thereof |
| 06/18/2009 | US20090153128 Dummy battery apparatus |
| 06/18/2009 | US20090153099 Method of electric energy transfer between a vehicle and a stationary collector |
| 06/18/2009 | DE102007060214A1 Ignition coil arrangement for internal combustion engine, comprises primary coil and secondary coil, which is attached at spark plug, and switching element is provided for controlling current of primary coil by control signal |
| 06/17/2009 | EP2071596A2 Complex inductor and power supply unit |
| 06/17/2009 | CN201259832Y Capacitive voltage transformer dirt resistance cover |
| 06/17/2009 | CN201259831Y 1000kV electromagnetic accurate voltage mutual inductor for magnitude tracing |
| 06/17/2009 | CN201259830Y Electronic voltage mutual inductor |
| 06/17/2009 | CN101458990A Energy-saving induction type ballast |
| 06/16/2009 | US7547212 Slipring with a slide track formed as a closed circuit of electrically resistant material |
| 06/11/2009 | WO2009072227A1 Transformer |
| 06/11/2009 | WO2009071400A1 Ignition coil |
| 06/11/2009 | US20090146638 Micro power converter |
| 06/10/2009 | EP2067149A1 Device for storing energy and transforming energy |
| 06/10/2009 | EP2067148A2 An apparatus, a system and a method for enabling electromagnetic energy transfer |
| 06/10/2009 | DE102007058961A1 Zündspule Ignition coil |
| 06/10/2009 | CN201256075Y High-voltage current transducer |
| 06/10/2009 | CN201256074Y Primary winding connecting terminal component for current transducer |
| 06/10/2009 | CN201256073Y Integrated depositing type transducer and producing mold |
| 06/09/2009 | US7545337 Antenna arrangement for inductive power transmission and use of the antenna arrangement |
| 06/09/2009 | US7545103 Cold-cathode tube lighting device for use in a plurality of cold-cathode tubes lit by one low-impedance power source |
| 06/09/2009 | US7545059 Chip-scale coils and isolators based thereon |
| 06/04/2009 | WO2008007310A3 Current balancing circuit |
| 06/04/2009 | DE102007058077A1 Magnetic core for ignition or starter coils, has two transversal supports and two I-shaped core bodies |
| 06/04/2009 | DE102007058076A1 Magnetic core for ignition coil has additional I-shaped core bodies, second on one end of first and transverse to it |
| 06/04/2009 | DE102007058074A1 Magnetic core e.g. for ignition or starter coil, includes I-shaped core body arranged on ends of mutually facing limbs of U-shaped cores |
| 06/03/2009 | EP2065907A1 Coil assembly |
| 06/03/2009 | CN201252003Y Three-phase combined mutual inductor special for outdoor transformer districts |
| 06/03/2009 | CN201252002Y Multiple gear-position switching terminator of a current transformator |
| 06/03/2009 | CN201252001Y Explosion prevention oil immersion inverted vertical mutual inductor |
| 06/03/2009 | CN201252000Y Fully-closed multi-winding current transformer |
| 06/03/2009 | CN201251999Y An outdoor compound insulation dry-type combined transformer |
| 06/03/2009 | CN101447328A Open-close type current transformer |
| 06/03/2009 | CN101447327A Method for improving stain resistance of capacitor voltage transformer and device thereof |
| 06/03/2009 | CN101447326A Non-contact connector |
| 06/03/2009 | CN100495601C Ignition coil |
| 06/03/2009 | CN100495600C Decimal inductor having multiple step disc |
| 05/28/2009 | US20090134812 Exhaust fan for showing variable characters |
| 05/28/2009 | US20090134710 Inductive coupling of pulses from piezoelectric device |
| 05/28/2009 | DE102007056558A1 Magnet core for ignition coil, has rolling core formed by rolled sheet, which is coated in electrically insulated manner, where rolling core is arranged between ends of C-shaped, double-T-shaped or U-shaped core body |
| 05/27/2009 | EP2062273A1 Inductance assembly for an electric machine |
| 05/27/2009 | CN201247686Y Special mutual-inductor for motor protection |
| 05/27/2009 | CN201247685Y High-voltage transformer with high leakage and dual high voltage output |
| 05/27/2009 | CN201247679Y Isolation signal transformer |
| 05/27/2009 | CN101442222A High voltage induction energy fetching power supply and method for obtaining power from high voltage line |
| 05/27/2009 | CN101441932A Chain high voltage sensing device |
| 05/26/2009 | US7539372 Contactless connector |
| 05/22/2009 | WO2009063975A1 Air core coil of power transfer device, coil of power transfer device, power transfer device, transmission device of power transfer device, and semiconductor integrated circuit used in power transfer device |
| 05/22/2009 | WO2009063746A1 Power acquiring apparatus |
| 05/21/2009 | US20090127936 Power transmission control device, power transmitting device, electronic instrument, and non-contact power transmission system |
| 05/20/2009 | DE10237255C5 Transformatorspule Transformer coil |
| 05/20/2009 | DE102008043333A1 Ignition coil for combustion engine, has end piece end connecting section connected with spark plug or external connecting device, where connecting section exhibits geometrical form corresponding to geometrical form of plug or device |
| 05/20/2009 | DE102007054514A1 System for supplying sensors and actuators comprises a resonance circuit having two spatially distributed coils to supply devices arranged in a screened volume region |
| 05/20/2009 | DE102007051579A1 Current transformer for measurement and protection in high or medium voltage networks, has bus bar which runs into upper area through opening channel with play |
| 05/20/2009 | CN201242935Y Electric-theft protection three-phase pulse type precision current mutual-inductor |
| 05/20/2009 | CN201242934Y Novel ballast for ageing energy-saving tube |
| 05/20/2009 | CN101437350A X-ray CT device and method of manufacturing the same |
| 05/20/2009 | CN101436473A 电开关 Electric switch |
| 05/20/2009 | CN101436463A Detachable high precision feeble current sensor |
| 05/19/2009 | US7535331 Booster transformer for driving magnetron and transformer unit having the booster transformer |
| 05/14/2009 | DE19912503B4 Gasisolierter Stromwandler Gas-insulated current transformer |
| 05/14/2009 | DE10246671B4 Kontaktlose Energieübertragung Contactless Energy Transfer |
| 05/14/2009 | DE102007054370B3 Elektronischer Schalter Electronic switch |
| 05/13/2009 | CN201237973Y Sulfur hexafluoride current mutual inductor with small-diameter casing tube |
| 05/13/2009 | CN201237617Y Standard current mutual inductor integration apparatus for field detection |
| 05/13/2009 | CN101432937A Ignition coil for an internal combustion engine, in particular of a motor vehicle |
| 05/13/2009 | CN101432827A Magnetic core for current transformer, current transformer, and watt-hour meter |
| 05/13/2009 | CN100487834C Transformer |
| 05/12/2009 | US7532788 Contactless connector |
| 05/07/2009 | WO2008145982A3 Power system |
| 05/06/2009 | CN201233808Y Current mutual inductor having shunting resistor |
| 05/06/2009 | CN201233807Y Feed-through rectangular current mutual inductor |
| 05/06/2009 | CN201233806Y High leakage transformer |
| 05/06/2009 | CN201233805Y Transformer for 12V halogen lamp |
| 05/06/2009 | CN201233804Y Electromagnetic induction power supply apparatus and electric observing and control equipment |
| 05/06/2009 | CN201233798Y Choke coil magnet core used for energy saving lamp |
| 05/06/2009 | CN101427330A Ignition coil for an internal combustion engine, in particular of a motor vehicle in particular |
| 05/06/2009 | CN101425705A Non-contact electricity supply and navigation apparatus for automatically guiding trolley |
| 05/06/2009 | CN101425372A Slope magnetic conduction construction rotor and magneto resistance type monopole rotary transformer using the rotor |
| 05/06/2009 | CN100485737C Mutual inductor |
| 04/30/2009 | WO2009054221A1 Electric vehicle and power feeding apparatus for the vehicle |
| 04/30/2009 | DE202009002933U1 Spulenkörper für ein Zündspule Bobbin for a coil |
| 04/30/2009 | DE102008043181A1 Zündspüle und Verfahren zu deren Herstellung Zündspüle and processes for their preparation |
| 04/30/2009 | DE102007059046B3 Contactless energy transmission device for data communication, has data transmission device attached or coupled to primary conductor, and electrically conductive coupling surface with primary conductor forming capacitive coupling element |
| 04/30/2009 | DE102007051419A1 NH-Sicherungslasttrenner mit Stromwandler NH fuse switch disconnectors with current transformer |
| 04/29/2009 | EP2052394A2 Method for producing a coil, in particular an ignition coil for a motor vehicle |
| 04/29/2009 | CN201230077Y Leakage protection plug |
| 04/29/2009 | CN201229849Y External integration type Rogowski coil current mutual inductor |
| 04/29/2009 | CN201229848Y Current mutual inductor for GIS |
| 04/29/2009 | CN201229847Y Weak output capacitor type voltage mutual inductor |
| 04/29/2009 | CN201229846Y High-voltage transformer |
| 04/29/2009 | CN201229370Y Device capable of implementing safety thermal plug of secondary current loop of electrical measuring instrument of transforming plant |
| 04/29/2009 | CN101422082A Superimposed-type device for a ballast |
| 04/29/2009 | CN101421801A High-voltage pulse generator, and lighting apparatus and vehicle having the same |